ceph/src/os/kstore/kstore_types.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2014 Red Hat
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15 #ifndef CEPH_OSD_KSTORE_TYPES_H
  16 #define CEPH_OSD_KSTORE_TYPES_H
  17
  18 #include <ostream>
  19 #include "include/types.h"
  20 #include "include/interval_set.h"
  21 #include "include/utime.h"
  22 #include "common/hobject.h"
  23
  24 namespace ceph {
  25   class Formatter;
  26 }
  27 /// collection metadata
  28 struct kstore_cnode_t {
  29   uint32_t bits;   ///< how many bits of coll pgid are significant
  30
  31   explicit kstore_cnode_t(int b=0) : bits(b) {}
  32
  33   void encode(bufferlist& bl) const;
  34   void decode(bufferlist::iterator& p);
  35   void dump(Formatter *f) const;
  36   static void generate_test_instances(list<kstore_cnode_t*>& o);
  37 };
  38 WRITE_CLASS_ENCODER(kstore_cnode_t)
  39
  40 /// onode: per-object metadata
  41 struct kstore_onode_t {
  42   uint64_t nid;                        ///< numeric id (locally unique)
  43   uint64_t size;                       ///< object size
  44   map<string, bufferptr> attrs;        ///< attrs
  45   uint64_t omap_head;                  ///< id for omap root node
  46   uint32_t stripe_size;                ///< stripe size
  47
  48   uint32_t expected_object_size;
  49   uint32_t expected_write_size;
  50   uint32_t alloc_hint_flags;
  51
  52   kstore_onode_t()
  53     : nid(0),
  54       size(0),
  55       omap_head(0),
  56       stripe_size(0),
  57       expected_object_size(0),
  58       expected_write_size(0),
  59       alloc_hint_flags(0) {}
  60
  61   void encode(bufferlist& bl) const;
  62   void decode(bufferlist::iterator& p);
  63   void dump(Formatter *f) const;
  64   static void generate_test_instances(list<kstore_onode_t*>& o);
  65 };
  66 WRITE_CLASS_ENCODER(kstore_onode_t)
  67
  68 #endif